Scraper



R. J. MOGHEE Mach v7, 1933.

SCRAPER Filed Aug. 28 1931 Patented Mar. 7, 1933 UNITED sTATEs ROBERT J'. M'CGHEE, OF VIRGINIA, MINNESOTA SCRAPER Application med August 28, 193i. serw Nu. 559,841.

This invention relates to mucking devices, and the embodiment here illustrated is particularly adapted for use in mining operations where drift or tunnelingris practiced.

The principal object is to produce such a device which will aid materially in the process of mucking or oaring for the material mined or removed vin the process of tunnelmg.`

More specific objects and advantages of the mechanism and method of operation will appear in the following description thereof.l

Referring now to the accompanying drawing, forming part of this application, and wherein like reference characters indicate like parts:

Figure 1 is an illustration of a portion of the interior of a tunnel, showing upon the bottom of same a common slush scraperlcoi operatively assoclated w1th the lnventlon.

F igure 2 is a side elevation of the scraper illustrating the method of Operating the mvention in conjunction therewith.

1 represents one of the side walls of the tunnel or drift, while 2 represents the face, and 3 the bottom thereof. 4 is a scraper or slusher, and which obviously may vary materially in form without departing from the spirit of the invention. In fact such a scraper may be on the forward end ofa caterpillar tractor, car, or the like.

It is known to those versed in the art that in such a tunneling process where rock is encountered, the face is usually drilled in a plurality of places and shot, prior to which shooting an under cut such as indicated at 5 is frequently made so as to keep the bottom of the drift level, and insure easier work in the final mucking process after each shot.

Now'my invention resides in providing a novel instrumentality for assisting in the mucking process, andwhich comprises the placing upon the bottom of the tunnel intermediate of the forward end of the receptacle, carrier, or scraper 4:, as the'case may I be, and the forward lower corner of the tunnel, which, as previously stated, may be within the under cut portion 5, a flexlble apron,

-in the instant case illustrated as a mat made of wooden or metal strips 6 spaced apart and yieldably connected as by a link of ehain or the likevas at 7 adj acent the ends thereof, so

that when theface of the tunnel is brokenv over sheaves 10 near the ceiling of the tun'nel and led to power means of some sort common in the art but not illustrated so that when the apron becomes loaded with muck, draft upon the lines 9 will roll up same, dumping the' muck into the scraper as clearly shown in Figure 2, when the process may be repeated as desired, and obviously expedite materially the operation of mucking. i

' VVhile I have shown this slat-like construction of apron, it is to be understood that the entire mat may be of interwoven Chain, or combination metal and rubber linked materiall as is used for matting, or it may be entirely of rubber and/or canvas which would vfunction in equally as good manner, the appearance of the mat, made of interwoven chain, being illustrated in Figure Q.

Having thus described my invention, what I claim and desire to secure by Letters Patent, is

. The combination with a mucking scraper,

of a fiexible apron for. initially receiving the muck which is ultimately lodged in the scrap- V er, means for attaching adjacent corners of w the scraper and apron together, and means at the corners of the opposite end of the apron for rolling itbackwardly towards thescrap- 

